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Centos, I have already expanded Virtual disk in Vmware, now i need to add additional space to LVM Group but most tutorials out there are saying to create new partition and add it to LVM. Since there is a limit four partitions i can't do that way.

How i would do it in this situation ?

Filesystem            size  used  aval. %used. mounted on
/dev/mapper/VolGroup00-LogVol00
                      328G  293G   18G  95%    /
/dev/sda1              99M   13M   82M  14%    /boot
tmpfs                1006M     0 1006M   0%    /dev/shm

Disk /dev/sda: 590.5 GB, 590558003200 bytes
255 heads, 63 sectors/track, 71797 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/sda1   *           1          13      104391   83  Linux
/dev/sda2              14       19581   157179960   8e  Linux LVM
/dev/sda3           19582       23497    31455270   8e  Linux LVM
/dev/sda4           23498       44384   167774827+  8e  Linux LVM

Nr  Begining      End     Size     Type   Filesystem     Flag    
 1     32,3kB    107MB   107MB     main   ext3           boot
 2     107MB     161GB   161GB     main                  lvm      
 3     161GB     193GB   32,2GB    main                  lvm      
 4     193GB     365GB   172GB     main                  lvm      
       365GB     591GB   225GB            Free space

Thank you in advance

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  • You are wrong, you can have 4 PRIMARY partitions, OR 3 PRIMARY and a large number of extended partitions (about another 64?) on one disk. Each of these type of partitions will be accessible by Linux and can be put together into a VG.
    – mdpc
    Apr 7, 2013 at 2:17
  • serverfault.com/questions/424678/…
    – Zoredache
    Apr 7, 2013 at 2:21

1 Answer 1

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You should reboot the system to a rescue media of some sort that includes the LVM tools, and a partition editor. Extend the 4th partition to the new end of the virtual drive. Then use pvresize to enlarge that physical volume.

Another solution would have been to create an additional Virtual Disk instead of expanding the existing disk. Setup a partition on the new drive, use pvcreate to prepare it as a physical volume. Then use vgextend to add the new new drive to the volume group.

As in all cases. It would be a very good idea to verify that you have good working backups before messing around with partitions/lvm.

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  • After pvresize, I think that you have to do a vgresize as well.
    – mdpc
    Apr 7, 2013 at 2:19

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